Exploring agate

I've been having a lot of fun exploring the idea of drawing agate using various colors and widths of auras. Eco-dyed paper provides an interesting mottled surface and possible 'centers'.

LAVENDER AGATE

BLUE AGATE

MALACHITE
Malachite is a very green stone and the browns of the eco-dyed paper just weren't going to work, so I did an all-over wash of phthalo green acrylic paint. That's the first photo. The second is the final artwork.

You can see other agate drawings in this post. There will be more. I'm already working on some!